For this, you need to edit styles of dashboard something like this:
In file "wp-admin/css/edit.min.css":
.categorydiv div.tabs-panel, .customlinkdiv div.tabs-panel, .posttypediv div.tabs-panel, .taxonomydiv div.tabs-panel, .wp-tab-panel {
max-height: 500px; /* change value from 200px on 500px */
font-size: 12px; /* add */
}
ul.categorychecklist li {
line-height:22px; /* delete */
}
In file "wp-admin/css/forms-rtl.min.css":
input[type=checkbox],input[type=radio]{
height:12px; /* change value from 16px on 12px */
width:12px; /* change value from 16px on 12px */
min-width:16px; /* delete */
}
